I've had good luck with 661. They seem to fit my head right and they've integrated with goggles (both Smith and Vibe Optic) well. I've performed my share of gravity checks with them on and I came away OK.

I just got a 661 Reset in small and its really nice and light, looks great and great price. Fits as expected if anything a micro bit on the large side, but not so it doesn't fit properly. I'm very happy with it.